Evidence map›Paper›PMID 27089981›Full record

ArticleNeuropharmacology2016

Mu-opioid receptor activation in the medial shell of nucleus accumbens promotes alcohol consumption, self-administration and cue-induced reinstatement.

Jocelyn M Richard, Howard L Fields

Abstract read
In one paragraph

Article in Neuropharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.2field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. The influence of drug class on reward in substance use disorders.Pharmacology, biochemistry, and behavior · 2024
    Review
  5. Review
  6. Article
  7. TheFrontiers in psychology · 2024
    Article
  8. Blocking μ-opioid receptors attenuates reinstatement of responding to an alcohol-predictive conditioned stimulus through actions in the ventral hippocampus.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  9. Scalp electroacupuncture targeting the VTAFrontiers in neuroscience · 2023
    Article
  10. Article
  11. Review
  12. Article
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  15. Article
  16. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Jocelyn M RichardDepartment of Neurology, The Wheeler Center for the Neurobiology of Addiction, Alcoholism and Addiction Research Group, University of California, San Francisco, CA, USA. Electronic address: jocelyn.richard@jhu.edu.
Howard L FieldsDepartment of Neurology, The Wheeler Center for the Neurobiology of Addiction, Alcoholism and Addiction Research Group, University of California, San Francisco, CA, USA. Electronic address: howard.fields@ucsf.edu.
University of California, San Francisco · US

Funding

Accumbens shell mu-opioid signaling in alcohol self-administration and relapseF32AA022290 · NIAAA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RICHARD, JOCELYN M · 2013 to 2015
$153k
NIAAA NIH HHS F32 AA022290
6 · The paper itself

Abstract

Endogenous opioid signaling in ventral cortico-striatal-pallidal circuitry is implicated in elevated alcohol consumption and relapse to alcohol seeking. Mu-opioid receptor activation in the medial shell of the nucleus accumbens (NAc), a region implicated in multiple aspects of reward processing, elevates alcohol consumption while NAc opioid antagonists reduce it. However, the precise nature of the increases in alcohol consumption, and the effects of mu-opioid agonists on alcohol seeking and relapse are not clear. Here, we tested the effects of the mu-opioid agonist [D-Ala(2), N-MePhe(4), Gly-ol]-enkephalin (DAMGO) in rat NAc shell on lick microstructure in a free-drinking test, alcohol seeking during operant self-administration, extinction learning and expression, and cue-reinforced reinstatement of alcohol seeking. DAMGO enhanced the number, but not the size of drinking bouts. DAMGO also enhanced operant alcohol self-administration and cue-induced reinstatement, but did not affect extinction learning or elicit reinstatement in the absence of cues. Our results suggest that mu-opioid agonism in NAc shell elevates alcohol consumption, seeking and conditioned reinforcement primarily by enhancing the incentive motivational properties of alcohol and alcohol-paired cues, rather than by modulating palatability, satiety, or reinforcement.

Indexed as

CuesReinforcement, PsychologyAlcohol DrinkingAnalgesics, OpioidAnimalsConditioning, OperantEnkephalin, Ala(2)-MePhe(4)-Gly(5)-MaleNucleus AccumbensRatsRats, Long-EvansReceptors, Opioid, muSelf AdministrationAnalgesics, OpioidEnkephalin, Ala(2)-MePhe(4)-Gly(5)-Receptors, Opioid, muAlcoholExtinctionMu-opioid receptorNucleus accumbensReinstatementSelf-administration

Identifiers

PMID27089981
PMCPMC4912898
OpenAlexW2340141432

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.